Grease-trap



(No Model.)

M. J. GIBBONS.

GREASE TRAP.

Patented Dec. 11, 1894;

WITNESSES:

UNITED. STATES PATENT OFFICE.

MICHAEL J, eIBBoNs, or DAYTON, OHIO.

' G REA S E'-TRAP.

sPEoIFIoATIoN forming part of Letters Patent No. 530,684, dated December 11, 1894.

.- Application filed m, 2,1894, smart. 516,400. (No model.)

To all whom it may concern.-

Be it known that I, MICHAEL J.G1BBoNs, of Dayton, county of Montgomery, Stateof Ohio, have invented new and useful Improvements in Grease-Traps; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to the accompanying.drawings,and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in plumbers traps, of the variety known as grease-traps.

The object of the invention is to provide a vacuum grease trap that will retain the grease and other foreign matter that is carried from the sink, and from which said grease and other matter may be removed without necessitating the employment of plumbers tools. In fact any one may easily remove the grease from the trap.

A further object is to provide a grease-trap that can be located in a convenient place, therefore, is easily accessible for cleansing, and cost of construction is another object in view.

The accompanying drawings hereto annexed and forming a part of the specification are referred to. v

Figure 1 represents my improved greasetrap in horizontal section attached to a sink; Fig. 2, a detached side elevation; Fig. 3, a section on the line Ia-00 of Fig.2; Fig. 4, a view of the inner cylinder removed from the trough; Fig. 5, a similar view to Fig. 3, showing the cylinder before turned. 7

Similar letters of reference indicate corresponding parts in the several views.

Adesignates a sink, (a) the waste-pipe leading therefrom.

B designates a metallic trough having an arched bottom into which the waste-pipe (a) and the sewer-pipe (b) are tapped. This trough is open at the top and is attachable, to the wall or other convenient place adjacent to the sink with its top on a horizontal plane coincident with the bottom of said sink, by means of brackets (c)(c), or it may be placed upon legs or otherwise supported.

((1) is a vent-pipe connected with the curved portion of the sewer-pipe to afford a sufficient circulation of air to facilitate the passage of the clearer water from the trap, and air from the-trapor seWer-pipe'into said vent-pipe.

- 0 designates a cylinder having its end inclosed and a longitudinal slot (e).

(f) is an arched handle or bail pivoted to the'e'nds of said cylinder ata point central with;the*slot(e). This cylinder is adapted to fit in .the' trough B, and together therewith forms the trap. The operative position is shown in Fig. 3, where it will be noted the slot (e) is on the lowest horizontal plane and over the nozzles of the waste and sewer pipes, the pivotal attachment of the bail (f) permitting the cylinder to assume this position while the hand portion of said bail rests against an upper side of the trough within convenient grasp.

The broken lines shown in Fig. 1 represent the liquid, of which there is never less than that shown below the heavy broken lines and that shown in the waste and sewer pipes, which forms an efiective and permanent-water-seal.

As the water is let into the trap through the waste pipe it forces itself into the cylinder through the slot (e). The grease or other impuritiesof less specific gravity will tend to rise to the surface by a well-known law of nature, so the water escaping from the trap through the sewer pipes will be substantially free from such matter. At the proper times the trap is cleansed, by removing the cylin der 0, which is easily done by catching hold of the bail. Before leaving the trough, the weight of the grease in said cylinder will cause it to turn until the slot (e) assumes an uppermost position as shown in Fig. 4, when it may be lifted from the trough and the matter therein emptied. After being cleansed a sufficient quantity of water is placed therein to effect a seal, as follows: The cylinder 0 is replaced in the trough, filled and covered with clear water substantially as is shown in Fig. 5; The water, it will be noted, extends into the trough and over the cylinder. This is important, as a vacuum is thus formed or the air is expelled from the cylinder and the trough, below the water line shown in Fig. 5. When the cylinder has been so filled and covered with water,it is turned around until the opening or slot (e) is brought to the position shown in Fig. 3, after which the superfluous water in the trough drains down to the water line shown in the pipes and cylinder in Fig. 1.

It will be seen from the foregoing description that the grease trap may be cleansed frequently, as it requires no more effort than the carryingof a bucket of water. There are no pipes to disconnect and no bailing or emptying from one vessel to another. On the contrary, the cylinder in which the grease is caught is easily removed.

Having fully described my invention, I claim 1. In a vacuum grease-trap, the combination of a trough with openings in the bottom, a cylinder removably placed in said trough having a longitudinal slot that normally lies above said openings, waste and sewer pipes attached to said openings whereby a waterseal is normally maintained, as herein speci- 2. In a vacuum grease trap, the combination with a trough provided with an open top, and a semi-cylindrical bottom with which the waste and sewer pipes connect; of a cylinder with inclosed ends, and a slot extending the length thereof; said slot adapted to register with the waste and sewer pipes, whereby grease and other matter will be collected in said cylinder; and means for removing said cylinder from the trough, substantially as described.

3. A vacuum grease trap consisting of a normally open trough with a semi-cylindrical bottom with which the waste and sewer pipes are connected; of a cylinder adapted to be placed in said trough, provided with a handle (f), and a longitudinal slot (c); said slot adapted to occupy a position over said waste and sewer pipes, whereby grease and other matter of a less specific gravity than water, are permitted to enter said cylinder; and the water to form a seal and pass ofi, free from said grease, substantially as described.

In testimony whereof I have hereunto set my hand this th day of April, 189i.

MICHAEL J. GIBBONS.

Witnesses:

R. J. MGCARTY, LESTER L. ALLEN. 

